Face prisoner with audacity (8)
I believe the answer is:
confront
'face' is the definition.
(I know that face can be written as confront)
'prisoner with audacity' is the wordplay.
'prisoner' becomes 'con' (abbreviation for 'convict').
'with audacity' becomes 'front' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'con'+'front'='CONFRONT'
Can you help me to learn more?
(Other definitions for confront that I've seen before include "Oppose head-on" , "Challenge" , "Meet face to face with" , "Square up to" , "Face up to (a problem)" .)